eprintid: 1181
rev_number: 9
eprint_status: archive
userid: 6
dir: disk0/00/00/11/81
datestamp: 2012-02-27 08:34:39
lastmod: 2014-12-05 09:46:23
status_changed: 2012-02-27 08:34:39
type: article
metadata_visibility: show
creators_name: Caldarelli, Guido
creators_name: Di Tolla, Francesco
creators_name: Petri, Alberto
creators_id: guido.caldarelli@imtlucca.it
creators_id: 
creators_id: 
title: Self-organization and annealed disorder in a fracturing process
ispublished: pub
subjects: QC
divisions: EIC
full_text_status: public
keywords: PACS: 64.60.Lx, 05.40.+j, 46.30.Nz, 62.20.Mk

note: © 1996 American Physical Society
abstract: We show that a vectorial model for inhomogeneous elastic media self-organizes under external stress. An onset of crack avalanches of every duration and length scale compatible with the lattice size is observed. The behavior is driven by the introduction of annealed disorder, i.e., by lowering the breaking threshold in the neighborhood of a bond broken by the stress, with a process similar to self-organized criticality. A further comparison with experimental results of acoustic emission (AE), shows that the stability of the elastic potential energy of the system in the AE regime is a sufficient condition for reproducing the algebraic distribution of the energy released during cracks formation.
date: 1996-09
date_type: published
publication: Physical Review Letters
volume: 77
number: 12
publisher: American Physical Society
pagerange: 2503-2506
id_number: 10.1103/PhysRevLett.77.2503
refereed: TRUE
issn: 0031-9007
official_url: http://dx.doi.org/10.1103/PhysRevLett.77.2503
citation:   Caldarelli, Guido and Di Tolla, Francesco and Petri, Alberto  Self-organization and annealed disorder in a fracturing process.  Physical Review Letters, 77 (12).  pp. 2503-2506.  ISSN 0031-9007      (1996)  
document_url: http://eprints.imtlucca.it/1181/1/PhysRevLett.Caldarelli_1996.pdf